When a baby is excessively crying in a movie theater (most usually Imax) and you grunt and yell for the parent to get the baby out. This can also disturb other guests in the theater but is exceedingly useful especially when at the climax of the movie and a small child has decided to tantrum.

While I was in the grimy movie about the butterfly princess sorceress with my sister, a minutebaby continuously 'wah-ed'; therefore, I fuddrucked "Get that baby out of here!- NOW".